Automatic weighing machine



' pany-ing drawin in which Patented Aug. 19, 1930 UNITED STA-TES PATENT"orrlca MAX JOSE! POHL, OF FRANKFOBT-ON-THE-MAIN. GERMANY, ASSIGNOB TOAUTO- MATEN- & FUELLUNGS-MANUFAKTUR, G. M. B. H. OFFRANKFORT-ON-THE-MAIN,

GERMANY AUTOMATIC WEIGHING MACHINE This invention has for its object toavoid an inconvenience connected with the commonly used weighingmachines, as a certain document is supplied at the weighing which provesthat the Weight-indications relate to the person who has used theweighing ma chlne.

It has already been proposed to automatically supply tickets, on whichthe date and the Weight are printed. Such tickets are however not adocument in the meaning of the word as nothing indicates that thenumerals relate to a certain person.

To obtain a reliable document it would not be sufiicient to write orprint on such a weighing ticket the name of the person who has beenweighed.

According to the invention an automatically operated camera is combinedwith the automatic weighing machine so that it is positively coupledwith the Weighing mechanism. On the printed ticket, issued by theweighing machine, not only the date and the weightbut also a photographof the weighed person or object are photographed. In this manner it ispossible to obtain by the combination of an automatic weighing machinewith a camera an absolute reliable document, this being important formany purposes.

The positive connection of the automatic weighing machine and anautomatic camera is carried out so that only a'characteristic portion ofthe object or person who has been weighed is photographed, for instanceof boxes or parcels the mark and of persons only the figure.

An arrangement of the latter kind .is illustrated, by way of example, inthe accom- Fig. 1 shows in side elevation, the upper portion in verticalsection, a. weighing machine combined with a camera, the weighingmechanism being omitted, V

Fig. 2 shows the front side of the weighing ticket issued and Fig. 3shows the rear side of the ticket.

The casing 1 of the automatic weighin machine comprises a platform 2 onwhic the person to be weighed is standin The weighing mechanism isoperated as ollows:

Application filed August 20, 1928, Serial No. 300,871, and in GermanyMay 16, 1928.

By the platform 2, when the same is being depressed by a person, a lever19 is depressed at one end, whereby a steel band 19' is slackened andstretched again bya counterweight 21 attached to the other end of thesteel band, so that a pulley 23, over which the steel band passes, isrotated, the axle 24 of said pulley rotating a cylinder 3 inwhich anincandescent electric lamp is mounted. On the transparent cylinder 3numerals are painted in mirror reflected picture. 4

As soon as by the insertion of a coin into a coin slot 25, or bydepressing of a switch, a circuit has been closed, current flows from abattery 27 through wires 28 and 29 to a slide 30, thence through theinserted coin 26 to a contact 31 and through a wire 33 to a motor 10,thence throu h a wire 34 to the mass of i the casing, to w lich also thenegative pole "of the batter 27 is connected. By this circuit closing te motor is started so that it causes through two contacts 36 and 37lighting of lamps 4 and'9. The switch disc must, prior to touching thecontacts 35 and 34, carry out a part rotation, the amplitude of which issuflicient to allow a sheet 8 of light-sensitive paper to be removedfrom a magazine 7 and to be conveyed-to in front of the cylinder 3. Atthe lighting up of the two lamps 4 and 9 the weighing number isphotographed upon the one side of the. paper sheet 8 and the picture oftheperson is .photochemically produced through the lens 5, directed tothe space above the platform 2, on the other side of the paper sheet 8.V The motor 10 is so constructed as to be momentarily arrested when thesheet 8 is between the lamp and lens for'the taking of the picture,andcontinuing to run, the exposed paper sheet 8'is conducted through thedeveloping and drying vessels 12 and thence to a stripper 38 where it isstripped oil and drops into a delivering chute 15. A lever 39 is at thesame time oscillated in the direction of the arrow line so that theslide 30 is pulled back and its slot 41 brought into register with thecoin 26 so that this coin drops through a chute 42 into a collector 4:3.By the dropping of the coin 26 the circuit of the motor 10 isinterrupted so that this motor stops.

Instead of a person a box might be weighed, the number or signature onwhich being then photographed on disc 8.

It is evidently not necessary to photograph the weight numeral 16 andthe date 17 on the disc 8. as they might be printed on orstamped intothe corresponding side of the disc 8 in which case the photograph of theperson or object would be above these indications. By photographingthese numerals on the disc the mechanism is however considerably sim-For the sheet metal disc a ticket of cardboard or other material madelight sensitive may be used, the tickets being cut oil a strip duringthe weighing operation.

An inconvenience connected with the printing of the weightnumber in theusual manner by means of type disc to be operated and stopped bycomplicated transmission gears is, that numerous friction resistanceshave to be overcome wherefrom result inaccuracies requiring subsequentadjusting of the weighing machines, requiring much time, so that gaugingof the machines is practically impossible. All these frictions andinaccuracies are suppressed when the numerals indicating the weight andthe date are photographed on the tickets, so that the automatic machinecan be gauged whereby the importance o1 the weighing ticket as adocument is further increased.

The frequently ascertained variations of weight are only apparent as awoman will weigh herself now without a cloak and then with a cloak. Thecombination of the weighing ticket with the photograph of the person whohas been weighed makes in consequently possible to ascertain the weightin a much more reliable manner.

I claim l. The combination of an automatic weighing machine in which bythe weighing operation the weight is marked on a ticket, an automaticphotographing machine, the lens of which is directed only to the spaceabove the weighing platform and which produces a photograph of theweighed person or article or of a portion of the same, a conveying de-'vice for the ticket to be printed conveying 7 the ticket through theweighing machine and through the photographing machine so that one andthe same ticket records documentary evidence of the results of theweighing operation and a photograph of the weighed person or article.

2. In a photographing and weight recording machine, a weight register, aphotographic lens and means for moving a sensitized ticket into exposureposition relative to the. weight register and lens, momentarilyarresting movement thereof for photographing a person on one side of theticket and photographing the Weighing indicia on theother side,developing and printing baths through which the exposed ticket passesand delivery means for the printed ticket.

3. In a photographing and weight recording machine, a weight register, aphotographic lens and means for moving a sensitized ticket into exposureposition relative to the weight register and lens, momentarily arrestingmovement thereof for photographing a person on one side of the ticketand photographing the weighing indicia on the other side, developing andprinting baths through which the exposed ticket passes and deliverymeans for the printed ticket, and means effecting illumination of aperson or object being photographed.

4. In a photographing and Weight record- 'ing machine, a weightregister, a photographic lens, a conveyor for moving a sensitized ticketinto exposure position relative to the weight register and lens,electrical means for operating the conveyor rendered operable uponinsertion of a coin in the machine, said electrical means being renderedmomentarily inoperative for photographing a person or object on one sideand photographing Weighing indicia on the other side, developing andprinting baths through which the exposed ticket passes and means fordelivering the printed ticket and discharging the coin into a receptacleand rendering the electrical means inoperative.

In testimony whereof I affix my signature.

MAX JOSEF POHL.

